SWITCHING CIRCUIT EMPLOYING AN INDUCTOR AND IGBT DEVICES - Patent 0439586

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EP 0 439 586 A1

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(43)	Date of publication:
	07.08.1991 Bulletin 1991/32

(21)	Application number: 90912477.0

(22)	Date of filing: 22.08.1990

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International Patent Classification (IPC):

H03K 17/ 0814^{( . )}
H03K 17/ 687^{( . )}

H03K 17/ 567^{( . )}
H03K 17/ 695^{( . )}

(86)	International application number:
	PCT/US1990/004695

(87)	International publication number:
	WO 1991/003104 (07.03.1991 Gazette 1991/06)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB IT LI LU NL SE

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Priority:

22.08.1989 US 19890396636
30.05.1990 US 19900530793

(71)	Applicant: Unique Mobility, Inc.
	Englewood, Colorado 80110 (US)

(72)	Inventor:
	CAMBIER, Craig, S. Louisville, CO 80027 (US)

(74)	Representative: Williams, Trevor John
	J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5EU London WC1R 5EU (GB)

(54)	SWITCHING CIRCUIT EMPLOYING AN INDUCTOR AND IGBT DEVICES